17
Troubleshooting
Problem Conrmation Resolution
Numeral such
as “2-” appears
at beginning
of device name
(Windows)
Did you connect the UM-ONE to a
dierent USB connector than the one
you used when installing the driver?
If you connect the UM-ONE to a dierent USB
connector than the one you used when installing
the driver, a numeral may appear with the device
name.
To have the device name appear without the
numeral, connect the UM-ONE to the same USB
connector used during installation, or reinstall the
driver (p. 22).
Using the UM-ONE
Problem Conrmation Resolution
Cannot select
or use UM-ONE
device
Is the driver installed? Install the driver (p. 9).
Is the UM-ONE’s USB indicator o?
Make sure that the UM-ONE is connected to the
computer correctly.
If the problem is not resolved, reinstall the driver
(p. 22).
Is the UM-ONE’s device name displayed?
Exit all programs that are using the UM-ONE,
disconnect the UM-ONE’s USB cable, and then
reconnect it.
If the problem is not resolved, reinstall the driver
(p. 22).
Did the computer enter standby
(suspend) mode, hibernate mode, or
sleep mode while the UM-ONE was
connected?
Exit all programs that are using the UM-ONE,
disconnect the UM-ONE’s USB cable, and then
reconnect it.
If the problem is not resolved, restart the computer.
Did you disconnect and reconnect the
USB cable while using the UM-ONE?
Exit all programs that are using the UM-ONE,
disconnect the UM-ONE’s USB cable, and then
reconnect it.
If the problem is not resolved, restart the computer.
Was the UM-ONE connected to the
computer while the computer was
starting up?
Connect the UM-ONE after the computer has
started up.
(With some computers, the UM-ONE cannot be
used if it is connected to the computer while the
computer is starting up.)
Are you using the Media Player included
with Windows? (Windows 7/Windows
Vista)
Use dierent software.
MIDI devices cannot be selected in Media Player.